The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory

This paper is devoted to the study of collisionless multicomponent plasma expansion in vacuum discharges. Based on the fundamental principles of physical kinetics formulated for vacuum discharge plasma, an answer is given to the following question: What is the main mechanism of cathode plasma transp...

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Autores principales:	Vasily Kozhevnikov, Andrey Kozyrev, Aleksandr Kokovin, Natalia Semeniuk
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	vacuum electronics vacuum arc vacuum breakdown computational physical kinetics Technology T
Acceso en línea:	https://doaj.org/article/015b633374354c6fa472f7100c362e87
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spelling	oai:doaj.org-article:015b633374354c6fa472f7100c362e872021-11-25T17:27:11ZThe Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory10.3390/en142276081996-1073https://doaj.org/article/015b633374354c6fa472f7100c362e872021-11-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/22/7608https://doaj.org/toc/1996-1073This paper is devoted to the study of collisionless multicomponent plasma expansion in vacuum discharges. Based on the fundamental principles of physical kinetics formulated for vacuum discharge plasma, an answer is given to the following question: What is the main mechanism of cathode plasma transport from cathode to anode, which ensures non-thermal metallic positive ion movement? Theoretical modeling is provided based on the Vlasov–Poisson system of equations for a current flow in a planar vacuum discharge gap. It was shown that the non-thermal plasma expansion is of a purely electrodynamic nature, caused by the formation of a “potential hump” in the interelectrode space and its subsequent movement under certain conditions consistent with plasma electrodynamic transportation. The presented results reveal two cases of the described phenomenon: (1) the dynamics of single-component cathode plasma and (2) multicomponent plasma (consisting of multiple charged ions) expansion.Vasily KozhevnikovAndrey KozyrevAleksandr KokovinNatalia SemeniukMDPI AGarticlevacuum electronicsvacuum arcvacuum breakdowncomputational physical kineticsTechnologyTENEnergies, Vol 14, Iss 7608, p 7608 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	vacuum electronics vacuum arc vacuum breakdown computational physical kinetics Technology T
spellingShingle	vacuum electronics vacuum arc vacuum breakdown computational physical kinetics Technology T Vasily Kozhevnikov Andrey Kozyrev Aleksandr Kokovin Natalia Semeniuk The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory
description	This paper is devoted to the study of collisionless multicomponent plasma expansion in vacuum discharges. Based on the fundamental principles of physical kinetics formulated for vacuum discharge plasma, an answer is given to the following question: What is the main mechanism of cathode plasma transport from cathode to anode, which ensures non-thermal metallic positive ion movement? Theoretical modeling is provided based on the Vlasov–Poisson system of equations for a current flow in a planar vacuum discharge gap. It was shown that the non-thermal plasma expansion is of a purely electrodynamic nature, caused by the formation of a “potential hump” in the interelectrode space and its subsequent movement under certain conditions consistent with plasma electrodynamic transportation. The presented results reveal two cases of the described phenomenon: (1) the dynamics of single-component cathode plasma and (2) multicomponent plasma (consisting of multiple charged ions) expansion.
format	article
author	Vasily Kozhevnikov Andrey Kozyrev Aleksandr Kokovin Natalia Semeniuk
author_facet	Vasily Kozhevnikov Andrey Kozyrev Aleksandr Kokovin Natalia Semeniuk
author_sort	Vasily Kozhevnikov
title	The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory
title_short	The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory
title_full	The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory
title_fullStr	The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory
title_full_unstemmed	The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory
title_sort	electrodynamic mechanism of collisionless multicomponent plasma expansion in vacuum discharges: from estimates to kinetic theory
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/015b633374354c6fa472f7100c362e87
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The Electrodynamic Mechanism of Collisionless Multicomponent Plasma Expansion in Vacuum Discharges: From Estimates to Kinetic Theory

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